UNIX for Beginners Questions & Answers

#!/bin/bash

X=(2H 4S 10D QC JD 9H 8S)

echo ${X[2]} > file

X=(2H 4S 10D QC JD 9H 8S)
>savefile 
end=${#X[*]}
echo "end = $end"
for i in `seq 0 $(( end -1 ))`  # arrays start with element == zero
do  
   echo "$i is = ${X[i]}" 
   if [ "${X[i]}" = "10D" ] ; then     
      echo  "${X[i]}" >> savefile  # to allow multiple "unsets"
      unset  X[i]      
      echo "$i is now unset and is = ${X[i]}"
      echo "    contents of savefile = `cat savefile`"
   fi 
done

X=(2H 4S 10D QC)
$ echo ${X[2]}
10D
$ unset X[2]
$ echo ${X[*]}
2H 4S QC